Heat-interchange means



Dec. 20, 1938.

C. A. HUBERT HEAT INTERCHANC-E MEANS Filed May 12, 1957 3 Sheetseet l mT T T Tm II will [liken/on Dec. 20, 1938. c. A. HUBERT HEAT INTERCHANGE MEANS Filed May 12, 5 Sheets-Sheet 3 [wealm- I KM M M4 Patented Dec. 20, 1938 UNITED STATES.

PATENT/OFFICE Application May 12, 1937, Serial N6. 142,209 In France May 20,1936

This invention has for its object to provide heat-interchange means applicable in all cases where an interchange, of heat between liquid and/or'gaseous fluids has to take place. This heat-interchange means is in known manner constructed in such a way. as to provide for a large interchange surface and yet only necessitates a relatively small volume, that is to say what may be termed its specific interchange power is relati'vely high.

' Heat-interchange means of this kind generally comprise between two single-part or compound. front walls a set of parallel tubes passing through plate-like radiator elements. According to the invention these elements are spaced'apart by. distance pieces of flat iron extending for the whole of the height or/and .the width of the interchange means, in such a way as thus to form' flow passages ofsubstantially constant section 2 throughout 3 their len'gth.

The attached drawings represent, by way of example, embodiments of heat-interchange means constructed according to the invention, and in which:

25 Fig. 1 is an elevation partially in section of a first embodiment.

, Fig-2 is a partial plan view of Fig. 1.

Fig. 3 is a combined front face (with covers omitted) and transverse section view of Fig. 1.

. so Fig- 4 represents in two transverse sectionsand Fig. 5 in partial plan, a heat-interchange means having its distance pieces arranged alternately in two directions, mutually at right angles.

Fig. 6 shows another embodiment in which the to distance pieces are extending over sets of two parallel tubes. v i

In-Figs. Ito 3, i designates the two structures including the front and rear walls of the heatinterchange means, 2 the tubes extending be- 40 tween these structures and connected thereto by their ends, a the plate elements constituting the main operative part of the heat-interchange surface and 4 the distance pieces formed by flat iron bars to maintain the separation of the plate elefil ments.

The fixing of the-tube endsinthe two structures. I can be enacted in various ways,.and it is advantageous to arrange these structures in such a way that connecting chambers 5 are-main- 0 tained to connect two successive tubes together,

these chambers permitting, moreover, easy access from the exterior to the orifices of the tubes,

for example, for the purpose of cleaning, repairs and otherwise. Thus, for example, in Fig; 1, the chamber 5, of cylindricallh mJlclosedbya single conical plug I .the stem 8 of which passes through a cap 9 coveringthe chamber externally and held in place by a nut-i0 on the stem. By removing the cap and the plug, access can be obtained to the two tubes 2 opening into the 5 chamber 5. This method of making the tubes communicate with one another is applicable not only when single-part front and rear structures are employed, but also if these structures are formed 10 by the juxtaposition or the superposition of blocks connecting between themselves a vertical or horizontal row of tubes or again two tubes only. The arrangement described also lends'itself to the construction of heat-interchange means havl6 ing an exterior in the form of a case completely closed on all sides; it is suflicient, for this purpose, to close, by sheet-metal walls extending from the front structure to the rear structure, the sides, top and bottom of the apparatus. This would permit of causing "a liquid fluid to pass in the spaces surrounding the tubular system.

Finally, by making the arrangement of the disance pieces I alternate, as represented in Figs. 4 nd 5, in sucha way that they arearranged in two mutually perpendicular directions from one plate 3 to the next, there will be obtained two channel systems independent the one from the' other, the channels a: of one proceeding from bottom to top and those of the other from left to .right. This will permit the interchange of heat 'tweenthe radiator plates extend but over one row of tubes, it wouid'also, in some cases, be of utility in having them extended over two or more adjacent rows as shown in Fig. 6 in which said flat iron bars 4 between the plates extend over two adjacent rows of tubes 2.

I claim: 1. Ina heats-interchange means for fluids of any'nature, comprising two front structures, a

set of intercommunicating parallel tubes extending between said structures, plate-like radiator elementson the tubes kept spaced apart the one A from the other by distance pieces, said distance pieces being flat iron bars traversed by the tubes and extending over the radiator elements in such a way as' to form flow passages oi substantially constant transverse section throughout their length.

2. In a. heat-interchange means for fluids of any nature comprising two front structures, a

set of intercommunicating parallel tubes extending between said structures and plate like radiator elements on the tubes kept spaced apart, the one from the other by distancepieces, said distance pieces being fiat iron bars traversed by the'tubes and extending alternately for the whole of the height and width of the radiator elements in such a way as to form flow passages oi substantially constant transverse section throughout their length and crossing each other perpendicularly.

radiator elements on the tubes kept spaced apart,

the one from the other by distance pieces said distance pieces being fiat iron bars traversed by the tubes and extending over the radiator elements in such a way as to form flow passages of substantially constant transverse section throughout their length;

CHARLES ADOLPHE HUBERT. 

